About: http://webisa.webdatacommons.org/100239672

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Each through bore 3 is formed by an opening 12 within which is formed a venturi-like shape 13 which is preferably formed from a resilient material such as a synthetic rubber, vinyl or fabric covered foam.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es